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Thread: E38 w/ No transmission Segments

  1. #1
    Junior Member
    Join Date
    Aug 2007
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    Default E38 w/ No transmission Segments

    Picked up a new 08 CC Sierra today. Couldn't have been 2 hours before i was grabbing EFI live and the ole laptop to pull the program. A quick look into this ok and i'm left wondering where the transmission segments are. From the supported vehicles list looks like the transmission has it's own pcm possibly a P42.

    Question is how do i gain access to this area?

    OS:12617631
    CAL:12617630


    Previous programming has been limited to 99+ Gen III and Atlas setups.

    Thanks in advance, any help would be much appreciated...

  2. #2
    EFILive Reseller kbracing96's Avatar
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    Sep 2005
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    584

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    When you click on the read PCM button and the black box opens up, You have to click on the controller box and select the Transmission 4/5 speed T42 TCM
    01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC

    Custom KBracing front mounted, BW S480, intercooled turbo


  3. #3
    Junior Member
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    Aug 2007
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    Default

    Quote Originally Posted by kbracing96 View Post
    When you click on the read PCM button and the black box opens up, You have to click on the controller box and select the Transmission 4/5 speed T42 TCM
    Thanks KB! Seems a little obvious now.

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